60 wildflowers were recorded blooming in Oregon in June in our iNaturalist sample; 18 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in June

Columbia lily

Western Columbine

Common Woolly Sunflower

Showy Milkweed

Pacific rhododendron

Ookow

White Brodiaea
Harvest Brodiaea

Poison Hemlock

Pacific Bleeding Heart

Purple Foxglove

Salal
All wildflowers blooming in Oregon in June
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Columbia lily | Lilium columbianum | lily family | 718 | Jun (peak) |
| 2 | Western Columbine | Aquilegia formosa | buttercup family | 543 | May (past peak) |
| 3 | Common Woolly Sunflower | Eriophyllum lanatum | Sunflowers, Daisies, Asters, and Allies | 393 | Jun (peak) |
| 4 | Showy Milkweed | Asclepias speciosa | Dogbane Family | 369 | Jun (peak) |
| 5 | Pacific rhododendron | Rhododendron macrophyllum | heath family | 328 | Jun (peak) |
| 6 | Ookow | Dichelostemma congestum | agave and allies | 296 | May (past peak) |
| 7 | White Brodiaea | Triteleia hyacinthina | agave and allies | 284 | Jun (peak) |
| 8 | Harvest Brodiaea | Brodiaea elegans | agave and allies | 257 | Jun (peak) |
| 9 | Poison Hemlock | Conium maculatum | carrot family | 241 | Jun (peak) |
| 10 | Pacific Bleeding Heart | Dicentra formosa | Poppy Family | 228 | Apr (past peak) |
| 11 | Purple Foxglove | Digitalis purpurea | Plantain Family | 219 | Jun (peak) |
| 12 | Salal | Gaultheria shallon | heath family | 207 | May (past peak) |
| 13 | Subalpine Mariposa Lily | Calochortus subalpinus | lily family | 203 | Jul (rising) |
| 14 | Creeping buttercup | Ranunculus repens | buttercup family | 183 | May (past peak) |
| 15 | Lawn daisy | Bellis perennis | Sunflowers, Daisies, Asters, and Allies | 176 | Apr (past peak) |
| 16 | Candy Flower | Claytonia sibirica | Pussypaw Family | 176 | Apr (past peak) |
| 17 | Common Beargrass | Xerophyllum tenax | Herb-Paris, False Hellebores, Trilliums and allies | 167 | Jun (peak) |
| 18 | Bride's Bonnet | Clintonia uniflora | lily family | 167 | Jul (rising) |
| 19 | Common Selfheal | Prunella vulgaris | Mint Family | 164 | Jun (peak) |
| 20 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 163 | Jun (peak) |
| 21 | Herb Robert | Geranium robertianum | Geranium family | 162 | May (past peak) |
| 22 | Spotted Coralroot | Corallorhiza maculata | Orchids | 158 | Jun (peak) |
| 23 | Oxeye Daisy | Leucanthemum vulgare | Sunflowers, Daisies, Asters, and Allies | 156 | May (past peak) |
| 24 | Common Snowberry | Symphoricarpos albus | honeysuckle family | 155 | Jun (peak) |
| 25 | Pacific trillium | Trillium ovatum | Herb-Paris, False Hellebores, Trilliums and allies | 154 | Apr (past peak) |
| 26 | Winecup Clarkia | Clarkia purpurea | evening primrose family | 154 | Jun (peak) |
| 27 | Thimbleberry | Rubus parviflorus | rose family | 154 | May (past peak) |
| 28 | Shortspur Seablush | Plectritis congesta | honeysuckle family | 148 | May (past peak) |
| 29 | Ocean spray | Holodiscus discolor | rose family | 145 | Jul (rising) |
| 30 | Arrowleaf Buckwheat | Eriogonum compositum | knotweed family | 144 | May (past peak) |
| 31 | Fireweed | Chamaenerion angustifolium | evening primrose family | 140 | Jul (rising) |
| 32 | Small Camas | Camassia quamash | agave and allies | 132 | Apr (past peak) |
| 33 | Coastal Manroot | Marah oregana | gourd family | 132 | May (past peak) |
| 34 | Large-Flowered Triteleia | Triteleia grandiflora | agave and allies | 130 | May (past peak) |
| 35 | Cornflower | Centaurea cyanus | Sunflowers, Daisies, Asters, and Allies | 127 | May (past peak) |
| 36 | Common Madia | Madia elegans | Sunflowers, Daisies, Asters, and Allies | 125 | Jul (rising) |
| 37 | Scouler's Harebell | Campanula scouleri | bellflower family | 121 | Jul (rising) |
| 38 | Tolmie's pussy ears | Calochortus tolmiei | lily family | 120 | May (past peak) |
| 39 | Sagebrush Mariposa Lily | Calochortus macrocarpus | lily family | 119 | Jul (rising) |
| 40 | Common St. John's Wort | Hypericum perforatum | St. John's wort family | 118 | Jul (rising) |
| 41 | Western Starflower | Lysimachia latifolia | primrose family | 114 | May (past peak) |
| 42 | Star-Flowered Lily-Of-The-Valley | Maianthemum stellatum | agave and allies | 111 | May (past peak) |
| 43 | Yellow Salsify | Tragopogon dubius | Sunflowers, Daisies, Asters, and Allies | 111 | Jun (peak) |
| 44 | Rugosa Rose | Rosa rugosa | rose family | 106 | Jun (peak) |
| 45 | California poppy | Eschscholzia californica | Poppy Family | 105 | May (past peak) |
| 46 | Common Cowparsnip | Heracleum maximum | carrot family | 105 | May (past peak) |
| 47 | Scotch Broom | Cytisus scoparius | Legumes | 104 | May (past peak) |
| 48 | Threeleaf Foamflower | Tiarella trifoliata | saxifrage family | 104 | Jul (rising) |
| 49 | Sulfur Buckwheat | Eriogonum umbellatum | knotweed family | 101 | Jun (peak) |
| 50 | Field Bindweed | Convolvulus arvensis | bindweed family | 100 | Jun (peak) |